In ground-based images, the patch of sky (just one-tenth the diameter of the full Moon) is largely empty.

BBC: NEWS | Science/Nature | Hubble sees the faintest galaxies

For ten days of actual observing time, the Hubble pointed to an area on the sky less than one percent of the size of the full moon.

FORBES: Hubble Astronomers Ready Ambitious 'Deep Field' Encore

The Waxing Gibbous Moon - the lunar phase between first quarter Moon and a full Moon - will be approximately one degree south of Jupiter appearing to be only a pen width apart.

ENGADGET: PSA: Slooh's Space Camera broadcasting Moon / Jupiter conjunction right now